Quick answers about Rosio
How many people are named Rosio?
An estimated 2,361 living Americans are named Rosio.
How rare is Rosio?
Rosio fell below the SSA's 5-birth reporting floor in 2025. It is extremely rare as a new baby name.
How old is the typical Rosio?
The median age of a living American named Rosio is approximately 37 years, with most bearers falling between 30 and 46 years old.
Is Rosio still popular?
Not especially. Rosio has been declining since its 1981 peak and registered 0 births in 2025.
Where is Rosio most common?
Rosio has its strongest geographic signal in California, where it appears 7.1× more often than the national baseline.
1963Peak 19812025
Where it lives now
Rosio is most concentrated in California — about 3.3× the national rate in the 1990s.
States where Rosio is given more often than the national average — its present-day heartland.
3×+
2×+
1.5×+
1.2×+
~ national
